What the reviewer found
A NIST SP 800-53-mapped security governance document (AGENTS.md) for an agent's own conduct. Every flagged line is a defensive MUST-NOT rule (no cloud metadata access, no arbitrary remote code execution) or a control-framework citation, not an instruction to do the flagged thing.
What was read
The file as it ships in GSA-TTS/agentic-coding-playbook:
AGENTS.md
What the static scan said
The scan flagged 3things. The reviewer kept 0 and dismissed 3 as false.
P2Hidden instructions — false positiveSSRF1Cloud metadata endpoint — false positiveEA1Unrestricted tool access — false positive
How this review was made
Sonnet 5 read the files above on 7 September 2026 and answered three questions: is it dangerous to whoever installs it, is each scanner finding real, and what should the installer know. The verdict is bound to the file's hash; when the file changes, it is scanned afresh and reviewed again. A script that changes while the definition does not is not re-reviewed — that is a known gap. How the scan and the review work.